Clearly then, BlackBerry is going to continue to make its OS exciting, but it looks as if the battery problems with the Z10 aren't going to be fixable.

For those who want to relive the glory days of week-long BlackBerry battery life, the as yet unreleased Q10 boasts a bigger 2100 mAh batttery and a smaller 720 x 720-resolution screen, which should use less power.